Department Of Transportation Uniform Tire Quality Grades

The following tire grading categories were established by the National Highway Traffic Safety Administration. The specific grade rating assigned by the tire’s manufacturer in each category is shown on the sidewall of the tires on your vehicle.

All passenger car tires must conform to Federal safety requirements in addition to these grades.

See also:

Tire Pressures For High-Speed Operation
The manufacturer advocates driving at safe speeds within posted speed limits. Where speed limits or conditions are such that the vehicle can be driven at high speeds, maintaining correct tire in ...

Transporting Passengers
NEVER TRANSPORT PASSENGERS IN THE CARGO AREA. WARNING! • Do not leave children or animals inside parked vehicles in hot weather. Interior heat build-up may cause serious injury or death. †...

How The Active Head Restraints (AHR) Work
The Occupant Restraint Controller (ORC) determines whether the severity, or type of rear impact will require the Active Head Restraints (AHR) to deploy. If a rear impact requires deployment, bot ...